How to Fix "Network Adapter Doesn't Have a Valid IP Configuration" Error

The "Network Adapter Doesn't Have a Valid IP Configuration" error often appears when there are network issues and can prevent Internet access. In this guide, we’ll cover the main causes of this issue and effective ways to resolve it.

Causes of the Error

This error commonly occurs due to the following reasons:

  • Issues with TCP/IP settings or IP address conflicts;
  • Malfunctions in network adapters or their drivers;
  • DNS server conflicts;
  • Malware threats or temporary system failures.

Solutions

1. Reset Network Settings

To reset TCP/IP settings, open Command Prompt as an administrator and enter the following commands one by one:

netsh winsock reset
netsh int ip reset

After running these commands, restart your computer to apply the changes.

2. Renew IP Address

In Command Prompt, use the following commands to renew your IP address:

ipconfig /release
ipconfig /renew

This refreshes your IP address and may resolve network configuration issues.

3. Reinstall Network Adapter Drivers

To reinstall drivers, follow these steps:

  1. Open Device Manager (right-click the Start button and select Device Manager);
  2. Find your network adapter, right-click it, and select "Uninstall device";
  3. Restart your computer, and Windows should automatically reinstall the necessary drivers.

4. Adjust DNS Server Settings

Sometimes incorrect DNS settings can cause this problem. To adjust DNS settings, follow these steps:

  1. Go to "Network Connections," select your connection, and open its properties;
  2. Select "Internet Protocol Version 4 (TCP/IPv4)" and click "Properties";
  3. Manually enter DNS servers, for example: 8.8.8.8 and 8.8.4.4 (Google Public DNS).

5. Run a Virus Scan

Some malware can modify network settings. Use antivirus software to perform a full system scan and address any threats found.